Pins, Clips & Retaining Rings

400+ products

Expected delivery: Wed, Nov 18

Pins, clips and retaining rings locate parts, hold shafts in place and keep linkages together on trailers, farm equipment, conveyors, gearboxes and machine guards. This section includes cotter pins, clevis pins, hitch pins, hair pin (R) clips, quick release pins, dowel pins, slotted and coiled spring (roll) pins, lynch pins, and internal and external retaining rings, sometimes called snap rings or circlips.

What to check before you order

Diameter and length. Pins are sized by nominal diameter and usable length. Measure the hole and the grip length through all parts.
Pin type. Dowel pins are precision ground for exact location. Roll pins compress to hold by spring tension in a drilled hole and tolerate a looser fit.
Retaining ring style. External rings fit a groove on a shaft and internal rings fit a groove in a bore. Check the groove diameter, not just the shaft size.
Tools. Most ring styles need retaining ring pliers with the correct tip size to install and remove them safely.
Material. Zinc-plated steel is common. Stainless suits outdoor and washdown equipment.

Common questions

Can I reuse a cotter pin?

It is good practice to use a new cotter pin each time. Bending the legs fatigues the metal, and a reused pin can break.

Browse the full fasteners category, washers, or hooks, shackles and eye bolts.

Pins, Clips & Retaining Rings: page 7

Approved Vendor 3/8"x1" Dowel Pins Thru Hardened Alloy, Plain SKU 22779 $2.09
Approved Vendor 3/8"x1" Pull-out Dowel Pins, Alloy Steel, Plain SKU 22780 $5.59
Approved Vendor 3/8"x1-1/2" .001 Oversize Dowel Pins, Alloy Steel, Plain SKU 22783 $5.10
Approved Vendor 3/8"x1-1/2" 18-8 Stainless Steel Dowel Pins SKU 2052 $5.92
Approved Vendor 3/8"x1-1/2" Dowel Pins Thru Hardened Alloy, Plain SKU 22784 $2.89
Approved Vendor 3/8"x1-1/2" Pull-out Dowel Pins, Alloy Steel, Plain SKU 22785 $5.84
Approved Vendor 3/8"x1-1/4" .001 Oversize Dowel Pins, Alloy Steel, Plain SKU 22788 $3.99
Approved Vendor 3/8"x1-1/4" 18-8 Stainless Steel Dowel Pins SKU 2051 $4.79
Approved Vendor 3/8"x1-1/4" Dowel Pins Thru Hardened Alloy, Plain SKU 22789 $2.52
Approved Vendor 3/8"x1-1/4" Pull-out Dowel Pins, Alloy Steel, Plain SKU 22790 $5.77
Approved Vendor 3/8"x1-1/8" Dowel Pins Thru Hardened Alloy, Plain SKU 22791 $2.58
Approved Vendor 3/8"x1-3/4" 18-8 Stainless Steel Dowel Pins SKU 2053 $7.34
Approved Vendor 3/8"x1-3/4" Dowel Pins Thru Hardened Alloy, Plain SKU 22792 $3.29
Approved Vendor 3/8"x1-3/4" Pull-out Dowel Pins, Alloy Steel, Plain SKU 22793 $6.55
Approved Vendor 3/8"x1-3/8" Dowel Pins Thru Hardened Alloy, Plain SKU 22794 $2.62
Approved Vendor 3/8"x1-5/8" Dowel Pins Thru Hardened Alloy, Plain SKU 22795 $4.17
Approved Vendor 3/8"x1/2" 18-8 Stainless Steel Dowel Pins SKU 2046 $2.40
Approved Vendor 3/8"x1/2" Dowel Pins Thru Hardened Alloy, Plain SKU 22797 $1.45
Approved Vendor 3/8"x1/2" Pull-out Dowel Pins, Alloy Steel, Plain SKU 22798 $6.62
Approved Vendor 3/8"x2" .001 Oversize Dowel Pins, Alloy Steel, Plain SKU 22804 $6.26
Approved Vendor 3/8"x2" 18-8 Stainless Steel Dowel Pins SKU 2054 $8.36
Approved Vendor 3/8"x2" Dowel Pins Thru Hardened Alloy, Plain SKU 22805 $3.64
Approved Vendor 3/8"x2" Pull-out Dowel Pins, Alloy Steel, Plain SKU 22806 $7.97
Approved Vendor 3/8"x2-1/2" .001 Oversize Dowel Pins, Alloy Steel, Plain SKU 22807 $7.97
Approved Vendor 3/8"x2-1/2" 18-8 Stainless Steel Dowel Pins SKU 2056 $11.49
Approved Vendor 3/8"x2-1/2" Dowel Pins Thru Hardened Alloy, Plain SKU 22808 $4.60
Approved Vendor 3/8"x2-1/2" Pull-out Dowel Pins, Alloy Steel, Plain SKU 22809 $9.30
Approved Vendor 3/8"x2-1/4" Dowel Pins Thru Hardened Alloy, Plain SKU 22810 $4.05
Approved Vendor 3/8"x2-1/4" Pull-out Dowel Pins, Alloy Steel, Plain SKU 22811 $8.73
Approved Vendor 3/8"x2-3/4" Dowel Pins Thru Hardened Alloy, Plain SKU 22812 $4.25
Approved Vendor 3/8"x2-3/4" Pull-out Dowel Pins, Alloy Steel, Plain SKU 22813 $7.56
Approved Vendor 3/8"x3" .001 Oversize Dowel Pins, Alloy Steel, Plain SKU 22815 $9.63
Approved Vendor 3/8"x3" 18-8 Stainless Steel Dowel Pins SKU 2057 $12.22
Approved Vendor 3/8"x3" Dowel Pins Thru Hardened Alloy, Plain SKU 22816 $5.54
Approved Vendor 3/8"x3" Pull-out Dowel Pins, Alloy Steel, Plain SKU 22817 $10.17
Approved Vendor 3/8"x3-1/2" Dowel Pins Thru Hardened Alloy, Plain SKU 22818 $6.47
Approved Vendor 3/8"x3-1/4" Dowel Pins Thru Hardened Alloy, Plain SKU 22819 $5.60
Approved Vendor 3/8"x3/4" .001 Oversize Dowel Pins, Alloy Steel, Plain SKU 22820 $2.77
Approved Vendor 3/8"x3/4" 18-8 Stainless Steel Dowel Pins SKU 2048 $2.98
Approved Vendor 3/8"x3/4" Dowel Pins Thru Hardened Alloy, Plain SKU 22823 $1.71
Approved Vendor 3/8"x3/4" Pull-out Dowel Pins, Alloy Steel, Plain SKU 22824 $5.30
Approved Vendor 3/8"x4" Dowel Pins Thru Hardened Alloy, Plain SKU 22825 $7.36
Approved Vendor 3/8"x5/8" 18-8 Stainless Steel Dowel Pins SKU 2047 $2.71
Approved Vendor 3/8"x5/8" Dowel Pins Thru Hardened Alloy, Plain SKU 22826 $1.59
Approved Vendor 3/8"x7/8" 18-8 Stainless Steel Dowel Pins SKU 2049 $3.54
Approved Vendor 3/8"x7/8" Dowel Pins Thru Hardened Alloy, Plain SKU 22829 $1.98
Approved Vendor 3/8x2" Steel Extended Prong Cotter Pin Zinc SKU 23369 $4.86
Approved Vendor 3/8x4" Steel Extended Prong Cotter Pin Zinc SKU 23371 $10.09

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